I have this handwritten letter, signature and notarization from Mark McGwire. I have no idea where it came from (originally) or its purpose or its exact date. I just know I bought it at a show about 20 years ago. Its speaks for itself (whatever that may be.............).
If anyone thinks it is not real, please, by all means speak up. I know nothing of MMG signatures.
Willing to sell it if anyone is interested. I do not collect sports memorabilia.